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<?php |
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namespace EM\CssCompiler; |
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use Composer\Script\Event; |
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use EM\CssCompiler\Processor\Processor; |
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/** |
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* @see ScriptHandlerTest |
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* |
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* @since 0.1 |
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*/ |
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class ScriptHandler |
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{ |
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const CONFIG_MAIN_KEY = 'css-compiler'; |
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const OPTION_KEY_INPUT = 'input'; |
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const OPTION_KEY_OUTPUT = 'output'; |
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const OPTION_KEY_FORMATTER = 'format'; |
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const DEFAULT_OPTION_FORMATTER = 'compact'; |
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protected static $mandatoryOptions = [ |
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self::OPTION_KEY_INPUT, |
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self::OPTION_KEY_OUTPUT |
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]; |
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/** |
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* @param Event $event |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public static function generateCSS(Event $event) |
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{ |
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$extra = $event->getComposer()->getPackage()->getExtra(); |
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static::validateConfiguration($extra); |
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$processor = new Processor($event->getIO()); |
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$currentDirectory = getcwd(); |
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foreach ($extra[static::CONFIG_MAIN_KEY] as $config) { |
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foreach ($config[static::OPTION_KEY_INPUT] as $value) { |
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$processor->attachFiles("{$currentDirectory}/{$value}", "{$currentDirectory}/{$config[static::OPTION_KEY_OUTPUT]}"); |
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} |
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$formatter = isset($config[static::OPTION_KEY_FORMATTER]) ? $config[static::OPTION_KEY_FORMATTER] : static::DEFAULT_OPTION_FORMATTER; |
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$processor->processFiles($formatter); |
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} |
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$processor->saveOutput(); |
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} |
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/** |
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* @param array $config |
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* |
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* @return bool |
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* @throws \InvalidArgumentException |
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*/ |
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protected static function validateConfiguration(array $config) |
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{ |
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if (empty($config[static::CONFIG_MAIN_KEY])) { |
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throw new \InvalidArgumentException('compiler should needs to be configured through the extra.css-compiler setting'); |
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} |
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if (!is_array($config[static::CONFIG_MAIN_KEY])) { |
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throw new \InvalidArgumentException('the extra.css-compiler setting must be an array of objects'); |
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} |
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return static::validateOptions($config); |
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} |
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/** |
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* @param array $config |
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* |
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* @return bool |
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* @throws \InvalidArgumentException |
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*/ |
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protected static function validateOptions(array $config) |
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{ |
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foreach ($config[static::CONFIG_MAIN_KEY] as $index => $option) { |
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if (!is_array($option)) { |
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throw new \InvalidArgumentException("the extra.css-compiler[{$index}]." . static::OPTION_KEY_INPUT . ' array'); |
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} |
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static::validateMandatoryOptions($option); |
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} |
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return true; |
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} |
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/** |
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* @param array $config |
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* |
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* @return bool |
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* @throws \InvalidArgumentException |
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*/ |
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protected static function validateMandatoryOptions(array $config) |
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{ |
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foreach (static::$mandatoryOptions as $option) { |
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if (empty($config[$option])) { |
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throw new \InvalidArgumentException("The extra.css-compiler[].{$option} required!"); |
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} |
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} |
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static::validateInputOption($config); |
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static::validateOutputOption($config); |
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return true; |
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} |
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/** |
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* @param array $config |
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* |
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* @return bool |
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*/ |
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protected static function validateInputOption(array $config) |
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{ |
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if (!is_array($config[static::OPTION_KEY_INPUT])) { |
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throw new \InvalidArgumentException('The extra.css-compiler[].' . static::OPTION_KEY_INPUT . ' should be array!'); |
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} |
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return true; |
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} |
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/** |
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* @param array $config |
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* |
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* @return bool |
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*/ |
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protected static function validateOutputOption(array $config) |
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{ |
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if (!is_string($config[static::OPTION_KEY_OUTPUT])) { |
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throw new \InvalidArgumentException('The extra.css-compiler[].' . static::OPTION_KEY_OUTPUT . ' should string!'); |
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} |
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return true; |
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} |
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} |
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learn-symfony /
css-compiler
